mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/AbuseFilter.git
synced 2024-09-24 10:48:17 +00:00
7450622fff
(bug 28633) With $wgUseAutomaticEditSummaries=true, the edit summary is different between EditFilterMerged and ArticleSaveComplete. AbuseFilter was using edit summary changes to attempt to detect whether the two hooks refer to the same edit. If it really is possible for multiple edits to be performed in the same request, with arbitrary patterns of EditFilterMerged and ArticleSaveComplete calls, then some more robust method would be needed to match the hook calls. But I don't think that is necessary at present. Change-Id: I94321905f38eafde8add00eff73745af255c1f15
545 lines
18 KiB
PHP
545 lines
18 KiB
PHP
<?php
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class AbuseFilterHooks {
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static $successful_action_vars = false;
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/** @var WikiPage|Article|bool */
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static $last_edit_page = false; // make sure edit filter & edit save hooks match
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// So far, all of the error message out-params for these hooks accept HTML.
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// Hooray!
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/**
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* Entry points for MediaWiki hook 'EditFilterMerged' (MW 1.20 and earlier)
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*
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* @param $editor EditPage instance (object)
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* @param $text string Content of the edit box
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* @param &$error string Error message to return
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* @param $summary string Edit summary for page
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* @return bool
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*/
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public static function onEditFilterMerged( $editor, $text, &$error, $summary ) {
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global $wgUser;
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$context = $editor->mArticle->getContext();
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$status = Status::newGood();
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$minoredit = $editor->minoredit;
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// poor man's PST, see bug 20310
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$text = str_replace( "\r\n", "\n", $text );
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$continue = self::filterEdit( $context, null, $text, $status, $summary, $wgUser, $minoredit );
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if ( !$status->isOK() ) {
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$error = $status->getWikiText();
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}
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return $continue;
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}
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/**
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* Entry points for MediaWiki hook 'EditFilterMergedContent' (MW 1.21 and later)
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*
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* @param IContextSource $context the context of the edit
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* @param Content $content the new Content generated by the edit
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* @param Status $status Error message to return
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* @param string $summary Edit summary for page
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* @param User $user the user performing the edit
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* @param bool $minoredit whether this is a minor edit according to the user.
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*
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* @return bool
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*/
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public static function onEditFilterMergedContent( IContextSource $context, Content $content,
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Status $status, $summary, User $user, $minoredit ) {
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$text = AbuseFilter::contentToString( $content, Revision::RAW );
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$continue = self::filterEdit( $context, $content, $text, $status, $summary, $user, $minoredit );
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return $continue;
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}
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/**
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* Common implementation for EditFilterMerged and EditFilterMergedContent hooks.
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*
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* @param IContextSource $context the context of the edit
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* @param Content|null $content the new Content generated by the edit
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* @param string $text new page content (subject of filtering)
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* @param Status $status Error message to return
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* @param string $summary Edit summary for page
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* @param User $user the user performing the edit
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* @param bool $minoredit whether this is a minor edit according to the user.
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*
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* @return bool
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*/
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public static function filterEdit( IContextSource $context, $content, $text,
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Status $status, $summary, User $user, $minoredit ) {
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// Load vars
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$vars = new AbuseFilterVariableHolder;
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self::$successful_action_vars = false;
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self::$last_edit_page = false;
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// Check for null edits.
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$oldtext = '';
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$oldcontent = null;
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$title = $context->getTitle();
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if ( ( $title instanceof Title ) && $title->canExist() && $title->exists() ) {
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// Make sure we load the latest text saved in database (bug 31656)
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$page = $context->getWikiPage();
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$revision = $page->getRevision();
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if ( !$revision ) {
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return true;
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}
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if ( defined( 'MW_SUPPORTS_CONTENTHANDLER' ) ) {
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$oldcontent = $revision->getContent( Revision::RAW );
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$oldtext = AbuseFilter::contentToString( $oldcontent );
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} else {
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$oldtext = AbuseFilter::revisionToString( $revision, Revision::RAW );
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}
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// Cache article object so we can share a parse operation
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$articleCacheKey = $title->getNamespace() . ':' . $title->getText();
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AFComputedVariable::$articleCache[$articleCacheKey] = $page;
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} else {
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$page = null;
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}
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// Don't trigger for null edits.
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if ( $content && $oldcontent && $oldcontent->equals( $content ) ) {
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// Compare Content objects if available
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return true;
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} else if ( strcmp( $oldtext, $text ) == 0 ) {
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// Otherwise, compare strings
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return true;
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}
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$vars->addHolder( AbuseFilter::generateUserVars( $user ) );
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$vars->addHolder( AbuseFilter::generateTitleVars( $title , 'ARTICLE' ) );
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$vars->setVar( 'action', 'edit' );
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$vars->setVar( 'summary', $summary );
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$vars->setVar( 'minor_edit', $minoredit );
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$vars->setVar( 'old_wikitext', $oldtext );
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$vars->setVar( 'new_wikitext', $text );
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// TODO: set old_content and new_content vars, use them
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$vars->addHolder( AbuseFilter::getEditVars( $title, $page ) );
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$filter_result = AbuseFilter::filterAction( $vars, $title );
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if ( !$filter_result->isOK() ) {
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$status->merge( $filter_result );
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return true; // re-show edit form
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}
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self::$successful_action_vars = $vars;
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self::$last_edit_page = $page;
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return true;
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}
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public static function onArticleSaveComplete(
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&$article, &$user, $text, $summary, $minoredit, $watchthis, $sectionanchor,
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&$flags, $revision
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) {
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if ( ! self::$successful_action_vars || ! $revision ) {
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self::$successful_action_vars = false;
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return true;
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}
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$vars = self::$successful_action_vars;
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if ( $vars->getVar('article_prefixedtext')->toString() !==
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$article->getTitle()->getPrefixedText()
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) {
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return true;
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}
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if ( !self::identicalPageObjects( $article, self::$last_edit_page ) ) {
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return true; // this isn't the edit $successful_action_vars was set for
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}
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self::$last_edit_page = false;
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if ( $vars->getVar('local_log_ids') ) {
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// Now actually do our storage
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$log_ids = $vars->getVar('local_log_ids')->toNative();
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$dbw = wfGetDB( DB_MASTER );
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if ( count($log_ids) ) {
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$dbw->update( 'abuse_filter_log',
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array( 'afl_rev_id' => $revision->getId() ),
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array( 'afl_id' => $log_ids ),
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__METHOD__
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);
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}
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}
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if ( $vars->getVar('global_log_ids') ) {
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$log_ids = $vars->getVar('global_log_ids')->toNative();
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global $wgAbuseFilterCentralDB;
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$fdb = wfGetDB( DB_MASTER, array(), $wgAbuseFilterCentralDB );
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if ( count($log_ids) ) {
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$fdb->update( 'abuse_filter_log',
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array( 'afl_rev_id' => $revision->getId() ),
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array( 'afl_id' => $log_ids, 'afl_wiki' => wfWikiId() ),
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__METHOD__
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);
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}
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}
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return true;
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}
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/**
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* Check if two article objects are identical or have an identical WikiPage
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* @param $page1 Article|WikiPage
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* @param $page2 Article|WikiPage
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* @return bool
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*/
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protected static function identicalPageObjects( $page1, $page2 ) {
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if ( ( class_exists('MWInit') && MWInit::methodExists( 'Article', 'getPage' ) ) ||
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( !class_exists('MWInit') && method_exists('Article', 'getPage') )
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) {
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$wpage1 = ( $page1 instanceof Article ) ? $page1->getPage() : $page1;
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$wpage2 = ( $page2 instanceof Article ) ? $page2->getPage() : $page2;
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return ( $wpage1 === $wpage2 );
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} else { // b/c for before WikiPage
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return ( $page1 === $page2 ); // should be two Article objects
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}
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}
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/**
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* @param $user
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* @param $promote
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* @return bool
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*/
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public static function onGetAutoPromoteGroups( $user, &$promote ) {
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global $wgMemc;
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$key = AbuseFilter::autoPromoteBlockKey( $user );
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if ( $wgMemc->get( $key ) ) {
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$promote = array();
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}
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return true;
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}
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/**
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* @param $oldTitle Title
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* @param $newTitle Title
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* @param $user User
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* @param $error
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* @param $reason
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* @return bool
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*/
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public static function onAbortMove( $oldTitle, $newTitle, $user, &$error, $reason ) {
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$vars = new AbuseFilterVariableHolder;
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global $wgUser;
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$vars->addHolder(
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AbuseFilterVariableHolder::merge(
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AbuseFilter::generateUserVars( $wgUser ),
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AbuseFilter::generateTitleVars( $oldTitle, 'MOVED_FROM' ),
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AbuseFilter::generateTitleVars( $newTitle, 'MOVED_TO' )
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)
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);
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$vars->setVar( 'SUMMARY', $reason );
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$vars->setVar( 'ACTION', 'move' );
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$filter_result = AbuseFilter::filterAction( $vars, $oldTitle );
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$error = $filter_result->isOK() ? '' : $filter_result->getWikiText();
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return $filter_result->isOK();
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}
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/**
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* @param $article Article
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* @param $user User
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* @param $reason string
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* @param $error
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* @param $status
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* @return bool
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*/
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public static function onArticleDelete( &$article, &$user, &$reason, &$error, &$status ) {
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$vars = new AbuseFilterVariableHolder;
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global $wgUser;
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$vars->addHolder( AbuseFilter::generateUserVars( $wgUser ) );
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$vars->addHolder( AbuseFilter::generateTitleVars( $article->getTitle(), 'ARTICLE' ) );
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$vars->setVar( 'SUMMARY', $reason );
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$vars->setVar( 'ACTION', 'delete' );
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$filter_result = AbuseFilter::filterAction( $vars, $article->getTitle() );
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$status->merge( $filter_result );
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$error = $filter_result->isOK() ? '' : $filter_result->getWikiText();
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return $filter_result->isOK();
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}
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/**
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* @param $user User
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* @param $message
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* @param $autocreate bool Indicates whether the account is created automatically.
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* @return bool
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*/
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private static function checkNewAccount( $user, &$message, $autocreate ) {
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if ( $user->getName() == wfMessage( 'abusefilter-blocker' )->inContentLanguage()->text() ) {
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$message = wfMessage( 'abusefilter-accountreserved' )->text();
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return false;
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}
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$vars = new AbuseFilterVariableHolder;
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// Add variables only for a registered user, so IP addresses of
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// new users won't be exposed
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global $wgUser;
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if ( $wgUser->getId() ) {
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$vars->addHolder( AbuseFilter::generateUserVars( $wgUser ) );
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}
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$vars->setVar( 'ACTION', $autocreate ? 'autocreateaccount' : 'createaccount' );
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$vars->setVar( 'ACCOUNTNAME', $user->getName() );
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$filter_result = AbuseFilter::filterAction(
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$vars, SpecialPage::getTitleFor( 'Userlogin' ) );
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$message = $filter_result->isOK() ? '' : $filter_result->getWikiText();
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return $filter_result->isOK();
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}
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/**
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* @param $user User
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* @param $message
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* @return bool
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*/
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public static function onAbortNewAccount( $user, &$message ) {
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return self::checkNewAccount( $user, $message, false );
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}
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/**
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* @param $user User
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* @param $message
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* @return bool
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*/
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public static function onAbortAutoAccount( $user, &$message ) {
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// FIXME: ERROR MESSAGE IS SHOWN IN A WEIRD WAY, BEACUSE $message
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// HERE MEANS NAME OF THE MESSAGE, NOT THE TEXT OF THE MESSAGE AS
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// IN AbortNewAccount HOOK WHICH WE CANNOT PROVIDE!
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return self::checkNewAccount( $user, $message, true );
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}
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/**
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* @param $recentChange RecentChange
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* @return bool
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*/
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public static function onRecentChangeSave( $recentChange ) {
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$title = Title::makeTitle(
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$recentChange->getAttribute( 'rc_namespace' ),
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$recentChange->getAttribute( 'rc_title' )
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);
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$action = $recentChange->mAttribs['rc_log_type'] ?
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$recentChange->mAttribs['rc_log_type'] : 'edit';
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$actionID = implode( '-', array(
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$title->getPrefixedText(), $recentChange->mAttribs['rc_user_text'], $action
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) );
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if ( !empty( AbuseFilter::$tagsToSet[$actionID] )
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&& count( $tags = AbuseFilter::$tagsToSet[$actionID] ) )
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{
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ChangeTags::addTags(
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$tags,
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$recentChange->mAttribs['rc_id'],
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$recentChange->mAttribs['rc_this_oldid'],
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$recentChange->mAttribs['rc_logid']
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);
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}
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return true;
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}
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/**
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* @param $emptyTags array
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* @return bool
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*/
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public static function onListDefinedTags( &$emptyTags ) {
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# This is a pretty awful hack.
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$dbr = wfGetDB( DB_SLAVE );
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$res = $dbr->select(
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array( 'abuse_filter_action', 'abuse_filter' ),
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'afa_parameters',
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array( 'afa_consequence' => 'tag', 'af_enabled' => true ),
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__METHOD__,
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array(),
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array( 'abuse_filter' => array( 'INNER JOIN', 'afa_filter=af_id' ) )
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);
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foreach ( $res as $row ) {
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$emptyTags = array_filter(
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array_merge( explode( "\n", $row->afa_parameters ), $emptyTags )
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);
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}
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return true;
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}
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/**
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* @param $updater DatabaseUpdater
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* @throws MWException
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* @return bool
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*/
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public static function onLoadExtensionSchemaUpdates( $updater = null ) {
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$dir = dirname( __FILE__ );
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if ( $updater->getDB()->getType() == 'mysql' || $updater->getDB()->getType() == 'sqlite' ) {
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if ( $updater->getDB()->getType() == 'mysql' ) {
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$updater->addExtensionUpdate( array( 'addTable', 'abuse_filter', "$dir/abusefilter.tables.sql", true ) );
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$updater->addExtensionUpdate( array( 'addTable', 'abuse_filter_history', "$dir/db_patches/patch-abuse_filter_history.sql", true ) );
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} else {
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$updater->addExtensionUpdate( array( 'addTable', 'abuse_filter', "$dir/abusefilter.tables.sqlite.sql", true ) );
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$updater->addExtensionUpdate( array( 'addTable', 'abuse_filter_history', "$dir/db_patches/patch-abuse_filter_history.sqlite.sql", true ) );
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}
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$updater->addExtensionUpdate( array( 'addField', 'abuse_filter_history', 'afh_changed_fields', "$dir/db_patches/patch-afh_changed_fields.sql", true ) );
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$updater->addExtensionUpdate( array( 'addField', 'abuse_filter', 'af_deleted', "$dir/db_patches/patch-af_deleted.sql", true ) );
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$updater->addExtensionUpdate( array( 'addField', 'abuse_filter', 'af_actions', "$dir/db_patches/patch-af_actions.sql", true ) );
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$updater->addExtensionUpdate( array( 'addField', 'abuse_filter', 'af_global', "$dir/db_patches/patch-global_filters.sql", true ) );
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$updater->addExtensionUpdate( array( 'addField', 'abuse_filter_log', 'afl_rev_id', "$dir/db_patches/patch-afl_action_id.sql", true ) );
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if ( $updater->getDB()->getType() == 'mysql' ) {
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$updater->addExtensionUpdate( array( 'addIndex', 'abuse_filter_log', 'filter_timestamp', "$dir/db_patches/patch-fix-indexes.sql", true ) );
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} else {
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$updater->addExtensionUpdate( array( 'addIndex', 'abuse_filter_log', 'afl_filter_timestamp', "$dir/db_patches/patch-fix-indexes.sqlite.sql", true ) );
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}
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$updater->addExtensionUpdate( array('addField', 'abuse_filter', 'af_group', "$dir/db_patches/patch-af_group.sql", true ) );
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if ( $updater->getDB()->getType() == 'mysql' ) {
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$updater->addExtensionUpdate( array( 'addIndex', 'abuse_filter_log', 'wiki_timestamp', "$dir/db_patches/patch-global_logging_wiki-index.sql", true ) );
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} else {
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$updater->addExtensionUpdate( array( 'addIndex', 'abuse_filter_log', 'afl_wiki_timestamp', "$dir/db_patches/patch-global_logging_wiki-index.sqlite.sql", true ) );
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}
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} elseif ( $updater->getDB()->getType() == 'postgres' ) {
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$updater->addExtensionUpdate( array( 'addTable', 'abuse_filter', "$dir/abusefilter.tables.pg.sql", true ) );
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$updater->addExtensionUpdate( array( 'addTable', 'abuse_filter_history', "$dir/db_patches/patch-abuse_filter_history.pg.sql", true ) );
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$updater->addExtensionUpdate( array( 'addPgField', 'abuse_filter', 'af_actions', "TEXT NOT NULL DEFAULT ''" ) );
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$updater->addExtensionUpdate( array( 'addPgField', 'abuse_filter', 'af_deleted', 'SMALLINT NOT NULL DEFAULT 0' ) );
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$updater->addExtensionUpdate( array( 'addPgField', 'abuse_filter', 'af_global', 'SMALLINT NOT NULL DEFAULT 0' ) );
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$updater->addExtensionUpdate( array( 'addPgField', 'abuse_filter_log', 'afl_wiki', 'TEXT' ) );
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$updater->addExtensionUpdate( array( 'addPgField', 'abuse_filter_log', 'afl_deleted', 'SMALLINT' ) );
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$updater->addExtensionUpdate( array( 'changeField', 'abuse_filter_log', 'afl_filter', 'TEXT', '' ) );
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$updater->addExtensionUpdate( array( 'addPgExtIndex', 'abuse_filter_log', 'abuse_filter_log_ip', "(afl_ip)" ) );
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$updater->addExtensionUpdate( array( 'addPgExtIndex', 'abuse_filter_log', 'abuse_filter_log_wiki', "(afl_wiki)" ) );
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}
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$updater->addExtensionUpdate( array( array( __CLASS__, 'createAbuseFilterUser' ) ) );
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return true;
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}
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/**
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* Updater callback to create the AbuseFilter user after the user tables have been updated.
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* @param $updater DatabaseUpdater
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*/
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public static function createAbuseFilterUser( $updater ) {
|
|
$user = User::newFromName( wfMessage( 'abusefilter-blocker' )->inContentLanguage()->text() );
|
|
|
|
if ( $user && !$updater->updateRowExists( 'create abusefilter-blocker-user' ) ) {
|
|
if ( !$user->getId() ) {
|
|
$user->addToDatabase();
|
|
$user->saveSettings();
|
|
# Increment site_stats.ss_users
|
|
$ssu = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
|
|
$ssu->doUpdate();
|
|
} else {
|
|
// Sorry dude, we need this account.
|
|
$user->setPassword( null );
|
|
$user->setEmail( null );
|
|
$user->saveSettings();
|
|
}
|
|
$updater->insertUpdateRow( 'create abusefilter-blocker-user' );
|
|
# Promote user so it doesn't look too crazy.
|
|
$user->addGroup( 'sysop' );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param $id
|
|
* @param $nt Title
|
|
* @param $tools
|
|
* @return bool
|
|
*/
|
|
public static function onContributionsToolLinks( $id, $nt, &$tools ) {
|
|
global $wgUser;
|
|
if ( $wgUser->isAllowed( 'abusefilter-log' ) ) {
|
|
$tools[] = Linker::link(
|
|
SpecialPage::getTitleFor( 'AbuseLog' ),
|
|
wfMessage( 'abusefilter-log-linkoncontribs' )->text(),
|
|
array( 'title' => wfMessage( 'abusefilter-log-linkoncontribs-text' )->parse() ),
|
|
array( 'wpSearchUser' => $nt->getText() )
|
|
);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param $saveName
|
|
* @param $tempName
|
|
* @param $error
|
|
* @return bool
|
|
*/
|
|
public static function onUploadVerification( $saveName, $tempName, &$error ) {
|
|
$vars = new AbuseFilterVariableHolder;
|
|
|
|
global $wgUser;
|
|
$title = Title::makeTitle( NS_FILE, $saveName );
|
|
$vars->addHolder(
|
|
AbuseFilterVariableHolder::merge(
|
|
AbuseFilter::generateUserVars( $wgUser ),
|
|
AbuseFilter::generateTitleVars( $title, 'FILE' )
|
|
)
|
|
);
|
|
|
|
$vars->setVar( 'ACTION', 'upload' );
|
|
$vars->setVar( 'file_sha1', sha1_file( $tempName ) ); // TODO share with save
|
|
|
|
$filter_result = AbuseFilter::filterAction( $vars, $title );
|
|
|
|
// XXX: HACK: return the first error, as an array containing the message key and
|
|
// any parameters.
|
|
// XXX: $errors may in the future also contain Message objects. Make sure UploadBase can
|
|
// deal with us returning that.
|
|
$errors = array_values( (array)$filter_result->getErrorsArray() );
|
|
$error = empty( $errors ) ? '' : $errors[0];
|
|
|
|
return $filter_result->isOK();
|
|
}
|
|
|
|
/**
|
|
* Adds global variables to the Javascript as needed
|
|
*
|
|
* @param array $vars
|
|
* @return bool
|
|
*/
|
|
public static function onMakeGlobalVariablesScript( array &$vars ) {
|
|
if ( AbuseFilter::$editboxName !== null ) {
|
|
$vars['abuseFilterBoxName'] = AbuseFilter::$editboxName;
|
|
}
|
|
|
|
if ( AbuseFilterViewExamine::$examineType !== null ) {
|
|
$vars['abuseFilterExamine'] = array(
|
|
'type' => AbuseFilterViewExamine::$examineType,
|
|
'id' => AbuseFilterViewExamine::$examineId,
|
|
);
|
|
}
|
|
return true;
|
|
}
|
|
}
|